Southern Ontario has been hit hard by an ice storm that knocked out power to about 100,000 customers.

The hardest hit areas were over the higher terrain regions of the Dundalk Highlands, regions west of the Niagara Escarpment as well as northern portions of the Greater Toronto Area towards Lake Simcoe.

Freezing rain began on Wednesday night and persisted for roughly 24 hours.

The storm was similar to the mammoth ice storm two years ago. This time it did not affect such a large population.